n April 2011, iPhone and iPad users were surprised to discover that, not only was their device keeping track of where they’d been, it also was storing very detailed location information in a plain-text file on the phone. Apple later said the devices were keeping more information than intended due to a bug, and issued a patch that reduced the amount of data. But, because it was used to improve and speed up location services, the practice continued.

And now, in iOS 7, Apple has added a tool that lets you see what your iPhone knows about where you go.